Wrench.



N0. 861,863. PATENTED JULY 30, 1907.

"11. KILBY.

, WRENCH. APPLICATION FILED -APR.14,1906.

2 SHEETS-1533B? 1.

LEl I f a S MQMM I /7a/oer/ffhij?v wimm soea PATENTED JULY-30,1907.

H. KILBY.

WRENCH.

APPLI OAT'ION FILED APE.14,1906. I

2 SHEETS-SHEET 2.

HACKER KILBY, OF JOHNSON CITY, TENNESSEE.

WRENCH.

Specification of Letters Patent.

Patented July 30, 1907.

Application filed April 14,1906. Serial No. 311,743.

To all whom it may concern:

Be it known that 1, HACKER KILBY, a citizen of the United States, residing at Johnson City, in the county of Washington, State of Tennessee, have invented certain new and useful Improvements in Wrenches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention has relation to so called ratchetwrenches in which the sliding jaw is adapted to be quickly adjusted on the main or handle-bar, to suit the size of the open jaws to the thing to be acted upon and when once adjusted to enable the said jaws to be held in place by rack or ratchet teeth on on epart cooperating with those formed on the opposite part or bar, as is generally understood in the art.

It is the object of the invention to provide such improvements as will secure a quick adjustment of the jaws; a strong and unyielding grip of the same; a wide range of usefulness; and other things rendered desirable in connection with the use of a complete pipe and nut wrench. I

The invention consists of a pipe and nut wrench having the properties and capabilities before mentioned, as well as those clearly portrayedin the draw ings hereto annexed and forming a part of this specification to which reference is to be made.

The construction and mode of operation of the invention will first be fully and clearly described and then be pointed out in the claims hereto subjoined.

Of the said drawings:Figure 1 is a side elevation of my improved wrench, the sliding jaw being fully drawn or opened. Fig. 2 is an edge view. Fig. 3 is a side elevation with the parts released. Fig. 4 is a section on line 44 of Fig. 1.

Similar figures of reference indicate similar parts or features as the case may be, wherever they occur.

In the drawings, 8 designates the main or handle bar on the forward end of which the fixed jaw 9 is located, the handle 10 being secured to the opposite end of said bar. I

11 designates the movable jaw constructed and arranged to slide on the main or handle bar 8 and having a lever 12 pivoted thereto for the purpose of adjusting the said movable jaw to desired position. A scale 13 is scribed on the side of the handle bar in order that the movable jaw may, if desired, be adjusted to proper position without first trying it to see whether the jaws will fit the nut or thing to which it is proposed to apply them.

The forward face of the handle bar and the inner face of the lever for adjusting the movable jaw, are respectively provided with rack or ratchet teeth 1 115 extending in opposite directions and exactly registering or matching so that when brought together, the movable jaw will be held secured in the position to which it is adjusted as though it were one with the handle bar as in the case of the ratchet wrenches, in some form or other. The teeth 14 of the lever 12 are formed at the rear of the slide in order that they may be readily disengaged from the teeth on the handle bar which would not be the case if they were formed on the lever within the limits of the slide or within the rounded out groove in the slide in which the said lever 12 is pivoted. The inner side of the handle 10 is rounded out as at 16 to receive the rear portion of the lever 12, and together with the handle 10 present a smooth and usable part which the operator can take hold of to effectively handle the wrench as a whole. The ratchet teeth of the main bar are formed on a strip 17 as herein shown,

which strip is secured to the main bar but said bar or strip may be made solid with the handle bar and have the ratchet teeth cut therein.

The sliding jaw should be made solidin one piece with the exception of the detachable plate 18 on one side. The side of the sliding-j aw upon which the plate 18 is fixed is reduced or inset to receive the said plate, and the slide is provided with a groove through its central portion from front to rear to receive the handle bar 13, which when in place will have the surface of its outer side extending in the same plane with the sides of the aforesaid inset portion; and a second recess is formed in the slide 11, for the reception of the forward flattened end of the lever 12, which end is secured in the said recess on a pivot 19. By making the plate 18 detachable, the sliding jaw and its adjuncts may be easily removed and the fixed jaw, the main bar and its handle, it will be seen can be used as an efficient and powerful hammer. The flat spring 20 is attached to one end of the forward edge or side of the movable jaw, and bearing at its free end on the lever 12 should be strong enough to keep the ratchet teeth of the main bar and lever engaged when once the jaws are adjusted and the teeth are brought into engagement with each other. The specified form and arrangement of the spring 20 is provided in order to make the same practicable and eflicient in the performance of its functions.

The fixed jaw is slightly rounded out at its outer end as at 21 and opposite this rounded out portion the movable jaw is serrated or roughened to cooperate with the fixed jaw in forming a suitable pipe wrench. The two jaws on the opposite side of the main bar are constructed to operate as a nut wrench, or for that matter, the pipe wrench portion of the implement will be found to be fully capable of acting efficiently as a nut wrench adjunct or for turning any object to which it may be applied.

The stop pin 22 on the back of the main bar which is designed to limit the backward movement of the movable bar under ordinary circumstances be left as a limit to the scale adjustment of the movable jaw or may be removed if found objectionable or not of good service.

The wrench as a whole may be constructed by dropforging or be produced in any other suitable way best suited to the construction of such implements.

The main bar of the Wrench may be made of a bar 1 X inches in a twelve inch wrench and in proportion as the wrenches are made larger, the cooperating points of course being brought into corresponding size.

The wrench is constructed on scientific principles throughout, and it is believed that those skilled in the art will recognize in its construction and mode of operation a wrench that is eliieient in the highest degree, strong, durable and handy for all work.

Having thus described my invention, what I claim, is:-

The combination with the main bar having ratchetteeth on its inner side, and provided with a fixed jaw, of the adjustable jaw and its slide, the latter being reduced or insetin one side, a groove formed centrally through its central portion for the reception of the main bar, and also recessed at the rear of the adjustable jaw, a straight lever pivoted at its forward end in the latter recess, a plate reinovahly attached to the side of the slide in the said inset to hold the main bar and pivoted end of the lever in place, the latter being provided on its inner side in the rear of the slide with ratchet-teeth to cooperate with the ratchet-teeth on the main bar, substantially as and for the purpose set forth.

In testimony whereof, l afiix my signature, in presence of two witnesses.

HACKER KILBY.

Witnesses:

CHAS. T. HUFFMAN, .Tas. A. MARTIN. 

